Aquarium



FIG. 1 is a perspective view taken from the top, front and left side ofan aquarium showing my new design;

FIG. 2 is a left side elevational view thereof, the right side being amirror image of the left side shown;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof; and

FIG. 6 is a front elevational view thereof.

The ornamental design for an aquarium, as shown and described.